418920077 has 2 divisors, whose sum is σ = 418920078. Its totient is φ = 418920076.

The previous prime is 418920067. The next prime is 418920079. The reversal of 418920077 is 770029814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343212676 + 75707401 = 18526^2 + 8701^2 .

It is a cyclic number.

It is not a de Polignac number, because 418920077 - 2²⁴ = 402142861 is a prime.

Together with 418920079, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 418920077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418920079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209460038 + 209460039.

It is an arithmetic number, because the mean of its divisors is an integer number (209460039).

Almost surely, 2^418920077 is an apocalyptic number.

It is an amenable number.

418920077 is a deficient number, since it is larger than the sum of its proper divisors (1).

418920077 is an equidigital number, since it uses as much as digits as its factorization.

418920077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 418920077 is about 20467.5371503266. The cubic root of 418920077 is about 748.2448302281.

The spelling of 418920077 in words is "four hundred eighteen million, nine hundred twenty thousand, seventy-seven".